What problem does it solve? Sending or receiving a cease-and-desist letter is a high-stakes legal event: an overbroad outgoing C&D can trigger declaratory judgment suits and bad-faith exposure, while an incoming C&D starts a clock that demands a structured response. This Skill guides IP practitioners through both sides with calibrated drafting, mandatory counterparty diligence, and a pre-delivery approval gate. ## Core Features & Use Cases - Send mode: Drafts a C&D letter calibrated to your enforcement posture (aggressive, measured, conservative), with counterparty diligence, marketplace takedown parallel paths, and a loud pre-delivery gate requiring approver sign-off. - Receive mode: Triages an incoming C&D into a structured memo covering rights validity, plausibility, exposure, deadline triage, and 4-6 response options with a recommendation. - Use Case: A trademark owner discovers a marketplace seller using their registered mark. Run send mode to verify the registration, run counterparty diligence, draft a proportionate demand letter, and file an Amazon Brand Registry report in parallel. ## Quick Start Ask the assistant to draft a cease-and-desist letter against a specific infringer, or paste an incoming C&D letter and request a triage memo with response options.